com.h revision dbea238999d6a4b34b9d1bdd1292e29717dd14be
/** @file
* MS COM / XPCOM Abstraction Layer:
* COM initialization / shutdown
*/
/*
* Copyright (C) 2006-2007 Sun Microsystems, Inc.
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 USA or visit http://www.sun.com if you need
* additional information or have any questions.
*/
#ifndef ___VBox_com_com_h
#define ___VBox_com_com_h
{
/**
* Initializes the COM runtime.
* Must be called on every thread that uses COM, before any COM activity.
*
* @return COM result code
*/
/**
* Shuts down the COM runtime.
* Must be called on every thread before termination.
* No COM calls may be made after this method returns.
*/
/**
* Resolves a given interface ID to a string containing the interface name.
* If, for some reason, the given IID cannot be resolved to a name, a NULL
* string is returned. A non-NULL string returned by this function must be
* freed using SysFreeString().
*
* @param aIID ID of the interface to get a name for
* @param aName Resolved interface name or @c NULL on error
*/
/**
* Returns the VirtualBox user home directory.
*
* On failure, this function will return a path that caused a failure (or
* NULL if the failure is not path-related).
*
* On success, this function will try to create the returned directory if it
* doesn't exist yet. This may also fail with the corresponding status code.
*
* If @a aDirLen is smaller than RTPATH_MAX then there is a great chance that
* this method will return VERR_BUFFER_OVERFLOW.
*
* @param aDir Buffer to store the directory string in UTF-8 encoding.
* @param aDirLen Length of the supplied buffer including space for the
* terminating null character, in bytes.
* @return VBox status code.
*/
} /* namespace com */
#endif